1、ANSI/AWWA D120-09(Revision of ANSI/AWWA D120-02)AW WA StandardEffective date: Oct. 1, 2009.First edition approved by AWWA Board of Directors Jan. 30, 1984.This edition approved Jan. 25, 2009.Approved by American National Standards Institute Aug. 13, 2009.6666 West Quincy Avenue Advocacy Denver, CO 8
2、0235-3098 Communications T 800.926.7337 Conferences www.awwa.org Education and TrainingScience and TechnologySectionsSMThe Authoritative Resource on Safe WaterThermosetting Fiberglass-Reinforced Plastic TanksCopyright 2009 American Water Works Association. All Rights Reserved.iiAWWA StandardThis doc
3、ument is an American Water Works Association (AWWA) standard. It is not a specifi cation. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifi -cations. The AWWA standards usually contain options that must
4、 be evaluated by the user of the standard. Until each optional feature is specifi ed by the user, the product or service is not fully defi ned. AWWA publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. The use
5、of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or codes of any governmental authority. AWWA standards are intended to represent a consensus of the water supply industry that the product described will prov
6、ide satisfactory service. When AWWA revises or withdraws this standard, an offi cial notice of action will be placed on the fi rst page of the classifi ed advertising section of Journal AWWA. The action becomes effective on the fi rst day of the month following the month of Journal AWWA publication
7、of the offi cial notice.American National StandardAn American National Standard implies a consensus of those substantially concerned with its scope and provisions. An Ameri-can National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an
8、 American National Standard does not in any respect preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review
9、, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own responsibility in advertis-ing and promotional materials or on tags or labels that the goods are produced in conformity with particul
10、ar American National Standards. CAUTION NOTICE: The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that
11、action be taken to reaffi rm, revise, or withdraw this standard no later than fi ve years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fou
12、rth Floor, New York, NY 10036; (212) 642-4900.All rights reserved. No part of this publication may be reproduced or transmitted in any forboim or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of brief excerpts or qu
13、otations for review purposes, without the written permission of the publisher.Copyright 2009 by American Water Works AssociationPrinted in USACopyright 2009 American Water Works Association. All Rights Reserved.iiiCommittee PersonnelTh e AWWA Standards Committee on Th ermosetting Fiberglass-Reinforc
14、ed Plastic Tanks, which developed and approved this standard, had the following personnel at the time of approval:Phillip A. Shar , ChairGeneral Interest MembersJ.J. Cusack Jr., Bryant Associates, Boston, Mass. (AWWA)M.W. Grimm,*Standards Council Liaison, Sunrise Water Authority, Happy Valley, Ore.
15、(AWWA)R. Lewandowski, Corrosion Resistant Composites, Timonium, Md. (AWWA)S.M. Passarelli,*Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA)P. A. Shar , Simpson Gumpertz and the standard was updated to allow either hydrostatic or aerostatic testing for underground tanks subject to manufacturers
16、 input.3. Nonmandatory guidance on manways, manway extensions, anchor straps, and connec-tion hardware for underground tanks has been expanded.4. A new nonmandatory appendix on fl anged-joint bolts, gaskets, and installation has been added.V. Comments. If you have any comments or questions about thi
17、s standard, please call the AWWA Volunteer and Technical Support Group at 303.794.7711, FAX at 303.795.7603, write to the group at 6666 West Quincy Avenue, Denver, CO 80235-3098, or e-mail at standardsawwa.org.Copyright 2009 American Water Works Association. All Rights Reserved.Th is page intentiona
18、lly blank.Copyright 2009 American Water Works Association. All Rights Reserved.AW WA Standard1ANSI/AWWA D120-09(Revision of ANSI/AWWA D120-02)Thermosetting Fiberglass-Reinforced Plastic TanksSECTION 1: GENERALSec. 1.1 ScopeTh is standard describes the composition, performance requirements, con-struc
19、tion practices and workmanship, design, and methods of testing thermoset-ting fi berglass-reinforced plastic (FRP) tanks for the storage of water or other liq-uids used in water supply service.1.1.1 Limit of standard. Th is standard is limited to atmospheric pressure, vented, cylindrical, and spheri
20、cal tanks, installed either aboveground or under-ground.1.1.2 Temperature limits. Th is standard is limited to tanks whose ser-vice temperature does not exceed 180F (82C) for aboveground tanks and 150F (66C) for underground tanks. Consult the tank manufacturer for recommended temperature limits (bot
21、h minimum and maximum) for specifi c equipment and service requirements.1.1.3 Service limits. Th e service limits for environmental exposure and structural loads shall be determined based on tests of laminates that are deter-mined by the engineer to be representative of the materials and methods of
22、fabrica-tion used in the tank.Copyright 2009 American Water Works Association. All Rights Reserved.2 AWWA D120-09Sec. 1.2 PurposeTh e purpose of this standard is to provide purchasers, manufacturers, and suppliers with the minimum requirements for thermosetting FRP tanks, including material and desi
23、gn.Sec. 1.3 ApplicationTh is standard can be referenced in specifi cations for purchasing and receiv-ing thermosetting FRP tanks. Th is standard can be used for manufacturing this type of tank. Th e stipulations of this standard apply when this document has been referenced, and then only to FRP tank
24、s.SECTION 2: REFERENCESTh is standard references the following documents. In their latest editions, these documents form a part of this standard to the extent specifi ed within the standard. In any case of confl ict, the requirements of this standard shall prevail.ANSI*/AWWA C115/A21.15Flanged Ducti
25、le-Iron Pipe with Ductile-Iron or Grey-Iron Th readed Flanges.ANSI/AWWA C207Steel Pipe Flanges for Water Works ServiceSizes 4 In. Th rough 144 In. (100 mm Th rough 3,600 mm).ASMEB1.1Unifi ed Inch Screw Th reads (UN and UNR Th read Form).ASME B16.1Cast Iron Pipe Flanges and Flanged Fittings.ASME B16.
26、5Pipe Flanges and Flanged Fittings.ASME B18.2.1Square and Hex Bolts and Screws, Inch Series.ASME B18.2.2Square and Hex Nuts, Inch Series.ASME B36.10Welded and Seamless Wrought Steel Pipe.ASTMA307Standard Specifi cation for Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength.ASTM C581Standard P
27、ractice for Determining Chemical Resistance of Th ermosetting Resins Used in Glass-Fiber-Reinforced Structures Intended for Liq-uid Service.ASTM D229Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation.* American National Standards Institute Inc., 25 West 43rd Str
28、eet, Fourth Floor, New York, NY 10036. ASME International, Th ree Park Ave., Floor 21, New York, NY 10016. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428.Copyright 2009 American Water Works Association. All Rights Reserved.THERMOSETTING FIBERGLASS-REINFORCED PLASTIC TANKS 3AS
29、TM D618Standard Practice for Conditioning Plastics for Testing.ASTM D638Standard Test Method for Tensile Properties of Plastics.ASTM D790Standard Test Methods for Flexural Properties of Unrein-forced and Reinforced Plastics and Electrical Insulating Materials.ASTM D883Standard Terminology Relating t
30、o Plastics.ASTM D2105Standard Test Method for Longitudinal Tensile Properties of “Fiberglass” (Glass-Fiber-Reinforced Th ermosetting-Resin) Pipe and Tube.ASTM D2290Standard Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe by Split Disk Method.ASTM D2563Standard Pr
31、actice for Classifying Visual Defects in Glass-Reinforced Plastic Laminate Parts.ASTM D2583Standard Test Method for Indentation Hardness of Rigid Plastics by Means of a Barcol Impressor.ASTM D2584Standard Test Method for Ignition Loss of Cured Rein-forced Resins.ASTM D3299Standard Specifi cation for
32、 Filament-Wound Glass-Fiber-Reinforced Th ermoset Resin Corrosion-Resistant Tanks.ASTM D3567Standard Practice for Determining Dimensions of “Fiber-glass” (Glass-Fiber-Reinforced Th ermosetting Resin) Pipe and Fittings.ASTM D4097Standard Specifi cation for Contact-Molded Glass-Fiber-Reinforced Th erm
33、oset Resin Corrosion-Resistant Tanks.ASTM E84Standard Test Method for Surface Burning Characteristics of Building Materials.ASTM G23Standard Practice for Operating Light-Exposure Appara-tus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials.NSF*/ANSI60Drinking Water Treat
34、ment ChemicalsHealth E ects.NSF/ANSI 61Drinking Water Treatment ComponentsHealth E ects.UL1316Glass-Fiber-Reinforced Plastic Underground Storage Tanks.* NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48113. American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY
35、 10036. Underwriters Laboratories Inc., 333 Pfi ngsten Rd., Northbrook, IL 60062.Copyright 2009 American Water Works Association. All Rights Reserved.4 AWWA D120-09SECTION 3: DEFINITIONSUnless otherwise indicated, the plastics terminology used in this standard is in accordance with ASTM D883, Standa
36、rd Terminology Relating to Plastics. In this standard, the following defi nitions shall also apply:1. Constructor: Th e person, fi rm, or corporation that provides the work and materials for installation of the FRP tank according to this standard.2. Contact molded: A method of manufacture whereby a
37、laminate of fi berglass reinforcement and resin is built up either by hand or by the use of a special spray gun that directs short fi bers and catalyzed resin onto the mold surface.3. Corrosion-resistant barrier: Th e inside portion of the laminate, composed of the inner surface and the interior lay
38、er, that acts as a protective bar-rier to the structural layer.4. Engineer: Th e engineer responsible for the design and/or specifi -cation of the tank for the intended use.5. Filament-wound: A method of manufacture whereby a continu-ous fi berglass-strand reinforcement, together with resin, is plac
39、ed in a predeter-mined pattern onto a suitable mandrel until su cient layers have been applied to form a laminate or part of a laminate.6. Head: Th e end closure of cylindrical FRP tanks; may apply either to the top or to the bottom of an aboveground tank or to the ends of an under-ground tank. 7. M
40、anufacturer: Th e person, fi rm, or corporation that actually manufactures the FRP tank according to this standard.8. Purchaser: Th e person, fi rm, corporation, or government subdivi-sion that purchases the FRP tank according to this standard.9. Relaxation: Th e time-dependent reduction in stress u
41、nder sus-tained strain.10. Resins: A thermosetting polyester or vinyl ester that is cross-linked with styrene. Th e physical and chemical properties of resins vary greatly. Each type of resin has particular strengths and weaknesses for a given application, which require evaluation.11. Surfacing veil
42、: A fi ne reinforcement-mat layer applied to the lami-nate surface.Copyright 2009 American Water Works Association. All Rights Reserved.THERMOSETTING FIBERGLASS-REINFORCED PLASTIC TANKS 5SECTION 4: REQUIREMENTSSec. 4.1 Classifi cationTh is standard describes the fabrication of thermosetting FRP tank
43、s defi ned by principal method of manufacture (type) and resin materials used in the con-struction (grade). 4.1.1 Type. Type Icontact molded; type IIfi lament-wound. (See note in appendix A.)4.1.2 Grade. Grade 1tanks manufactured with a single generic type of thermoset resin throughout; grade 2tanks
44、 manufactured with a di erent generic type of resin in the inner surface or interior layer than in the structural layer.Sec. 4.2 Potable Water Service4.2.1 Qualifi cation. Tanks specifi ed for potable water service shall be constructed of materials that meet governing state and local regulations for
45、 potable water certifi cation, including the Safe Drinking Water Act.4.2.2 Certifi cation. Tanks specifi ed for potable water service shall be cer-tifi ed as suitable by a testing laboratory acceptable to the purchaser, in accordance with the requirements in Sec. 4.2.1. (See note in appendix A.)Sec.
46、 4.3 MaterialsMaterials shall comply with the requirements of the Safe Drinking Water Act and other federal regulations for potable water, wastewater, or reclaimed water systems as applicable.4.3.1 Resin. Th e resin shall be a commercial-grade, thermosetting plastic resin that has been evaluated in
47、a laminate by test in accordance with Section 5 or that has been determined by the engineer to be acceptable for the service condi-tions based on previous documented service. Th e resin shall not contain fi llers or pigments except as specifi ed in Sec. 4.3.1.1, 4.3.1.2, 4.3.1.3, 4.3.1.4, and 4.3.1.
48、5.4.3.1.1 Th ixotropic agent. Up to 5 percent (by weight) thixotropic agent that will not interfere with visual inspection may be added for viscosity control. Resin pastes used to fi ll crevices before overlay shall not be subject to this limitation.4.3.1.2 Ultraviolet absorbers. Ultraviolet absorbe
49、rs may be added to the fi nal resin coating to improve weather resistance.4.3.1.3 Pigments. Resins, catalysts, and other additives may contain pig-ments, dyes, or colorants, provided their concentration does not prevent detection of visual defects or adversely a ect performance of the laminate.Copyright 2009 American Water Works Association. All Rights Reserved.6 AWWA D120-094.3.1.4 Fire retardants. Fire-retardant agents may be added for improved fi re resistance. (See note in appendix A.)4.3.1.5 Fillers. Particulate
